Power-transmission mechanism



C. C. WILLIAMS.

POWER TRANSMISSION MECHANISM. APPLlcATIoN EILED ocL 2, |920.

1 ,424,542. Patented Aug. 1, 1922.

4 SHEETS-SHEET l.

C. C. WILLIAMS. POWER TRANSMISSION MEcHANlsM.

APPLICATION FILED UCL 2, |920.

Patented Aug. 1, 1922.

4 SHEETS-SHEET 2.

c. c. WILLIAMS.

POWER TRANSMISSIN MECHANISM.

APPLICATION FILED ocT- 2l 1920.

1 ,424,542, Patented Aug. 1, 1922,

4 SHEETS-SHEET 3.

) y my A C. C. WILLlAMS.

POWER TRANSMSSION MECHANISM.

APPLlcAnoN man ocr= 2. 1920.

1,424,542. Patented Aug. 1, 1922.

4 SHEETS-SHEET 4.

E@ 5 @AU/N C. M/lLLiAMJ B7 ms MwORNEY UNITED STATE5 QALVIN C. WILLIAMS, 0F PHILADELPHIA, PENNSYLVANIA.

POWER-TRANSMISSION MEGHANISM.

To all 107mm, it may concern.'

Be it known that 1, CAiiviN C. WILLIAMS, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Power-Transmission Mechanism, of which the following is a specification.

My invention relates to power transmission mechanism such as is used for the purposes of changing reciprocating movement `into rotary movement, the objects of my invention being to construct mechanism of this type in such a way that the vibratory movenient of the reciprocating element may be changed into continuous movement in either direction of the rotary element, that cessation of movement of the reciprocating element may permit the rotary element to continue its rotation, and that the stationary reciprocating' element may be caused to act as a brake upon the rotary element. These objects I accomplish in the manner hereinafter set forth, reference being had to the accompanying drawings, in which- F ig. 1 is a side elevation, diagrammatic in nature, of power transmission mechanism constructed in accordance with my invention, a swinging handle being illustrated' as the actuating medium for the reciprocating element;

Fig. 2 is a vertical transverse sectional view of the transmission mechanism;

Fig. 3 is a vertical longitudinal sectional view on the line 3 3, Fig. 2;

Fig. 4 is a vertical longitudinal sectional view on the line 4-4, Fig. 2, this view illustrating certain elements of the construction in the positions they occupy when the device is adjusted to neutral position;

Fig. 5 is a view similar to Fig. but with the parts adjusted to forward drive position; n

Fig. 6 is a side view of the reciprocating element with its parts adjusted to forward drive position;

Fig. 7 is a view similar to Figs. 4 and 5, but with the parts adjusted to rearward drive position;

Fig. 8 is a view similar to Fig. 6 but with the parts adjusted to rearward drive position, and

Fig. 9 is a vertical transverse sectional view on the line 9 9, Fig. 3.

Referring, in the first instance to Fig. 1, there is illustrated a reciprocating head 1 cooperating with a transverse shaft 2. The

Specification of Letters Patent.

Patented Aug. 1, 1922.

Application led October 2, 1920. Serial No. 414,243.

primary purpose of my invention is to interpose such mechanism between this head 1 and shaft 2 that reciprocation of the head 1 may be caused to drive the shaft 2 in either direction, at will. Other subsidiary purposes will manifest themselves later.

The head 1 is secured to a rod 5, the forward end of which is secured to a swinging handle pivotally mounted at 7 and capable ot '.i swing o.-/i. The means whereby swing of the handle (i is caused to produce continuous rotation of the shaft 2 in either direction will now be described, reference being had io the remainder of the figures of the `drawing.

The shaft 2 is mounted in bearings secured to opposite side frames 8, which frames also carry bearings for a supplementary shaft 10 and an .intermediate shaft 11.

Loosely ymounted upon the shaft 2 is the huh 12 of a disk 13, the periphery of which is provided with one or more contact surfaces 14. Fixedly mounted upon the shaft is the hub of a disk 15, the periphery of which lis provided with a fiange 16 overlapping the disk Interposed between each Contact surface 14 and the flange 16 is a ball or roller 17 adapted to clutch the contact surface 14 to the flange 16 or unclutch it` therefrom, each ball or roller 17 (which hereinafter, for convenience, will be referred to asa ball) being controlled in its relation to the surface 14 by means of a pair of pins 18 which Hank it.

Secured to the huh 12 is a spur pinion 19 and with this pinion intermeshes a rack 20 carried by the reciprocating head 1. As this head l reciprocates the pinion 19 is oscillated, with consequent oscillation of the disk 13. The pins 18 are mounted upon and project from a disk 21 which is positioned adjacent the disk 13 and which is provided with a huh 22, and to this hub. which is loosely mounted upon the hub 12, is secured a spur pinion 23 with which intermeshes a rack 24 travelling with but adjustable in respect to the rack 20.

The parts 12 to 24, inclusive. constitute the mechanism which serve to create rotary movement of the shaft 2 as a result of reciprocating movement of the head 1 and these parts are duplicated with respect to the shaft 1i), that is to say, the parts 12a and 24a inclusive, are identical with and function the same as the parts 12 to 24, inelusive.

Then the disks Q1 and 21a are adjusted in respect to the disks 13 and 13a so -as -to adjust the pins 18 and 18 in respect to the contact surfaces 14 and 14, aslshofwn in Fig. '-1, reciprocation of the racks Q() and 24, 20 and 24 will cause oscillation of the disks 13 and 13a but the balls 17 and 17a will at no time he permitted to jam between the contact faces 1li and 14a and the flanges 16 and 16, consequently there will be no rotation of the latter and che shafts '2 and 1f) will stand idle. This is the case when `the various racks and pi-nions loccup i the relative posi tions shiown in Fic. 3. Wilheu, however, it is desired to rotate rtl'xeshaft Q continuously in a forward direction the racks 24 Aand 24 are adjusted in respect to the racks .20 and 20a to the positions shown in Fig. 6. The manner in which this adjustment is effected will be later described.

Wired-i lsuch adjustment is eiected the pinions 23 and '23 receive movement of partia'l rotation in respect *to the pinions 19 and 19a with consequent adjustment of the disks 21 a'nd Q1 =in respect to thedisks 13 and 13. Such change causes adjustment of the fpins 18 and 18 in respect to the contact sur aces 11 and 14, as shown in lFig. 5, wherein it will he seen that when the Ydisks 13 and 13EL are rotated in the v'direction of the arrows the baflfls 17 and 17 will 'be prevented 'from jammingagai'nst the lianges 126 and '16, but when the disks and 13 Vare rotated in the direc tion of the arrows y the said loalls will jam between the rcontact surfaces 14 and 14a and the flanges 16 and 116 and will consequently rotate-theftlisks 15 `and 15a in *che direction of the larrows y, and the shafts 2 and 10 'will therefore be rotated in that direction.

On *the "forward stroke of the actuating racks l'the disk 13 will be rotated in the direction of 'the arrow y and the disk 13a will be rotated in the direction of gthe arrow :t and rotation will be imparted tofthe shaft 2. On fthe return or rearward stroke `of the actuating racks, the disk 18 will he rotated in the direction of the arrow a' and the disk 13 will "be lrotated in the direction of the arrow y, with consequent rotation Vof tthe shaft A1(1), 'whereupon it will be seenfthat .the shafts 2 and ltl'wiil now be intermittently and alternately v'positively rotated.

In Iorchar ithat the rotation off the shaft 2 mafybecontinuous such shaft Vhas vmounted upon it. a `spur pinion Q5, a like pinion '25a being mounted upon thefshaft 10 and each of these ipiinions intermeshing with an 4interme diate pinion Q6 mounted upon the interina diateshaft y11. @wingftofthis gear train the drive of the shaft Q is continuous, it receiving its impetus directly -upon the forward stroke-of the actuating racks and indirectly upon `the rearward stroke thereof.

The manner in Awhichfthe racks 24 and 24 are adjusted in respect to the racks 20 `and 20 will now he described, particular reference had to Fig. 1.

The rack 21 is formed upon a bar Q7 while the rack 24a is ztomied upon a har Q7, the forward ends of these liars being pivoted to a lever 2S which is pivotally mounted .at 29 to the rod The upper end of this lever is pivoted to the rear end of a link 30, the forward end of which is pivoted to a swinging arm 31 pivotally mounted at 3Q to the rod 5 and capable ofthe swing m n.

YWhen the swinging arm 31 is adjusted to the position shown in Fig. 1 the various racks occupy the position shown in Fig. 3, which is neutral position and 'their reciprocation does not cause rotation 'of either of the shafts i? or .1.0. lWhen the arm B1 (Fig. 1) is swung forward to the position n the racks yare adjusted to the positions shown in Fig'. V(i, which is their forward drive position and reciprocation of the racks resul-ts in the continuous forward drive of the shaft 2 4already described.

EVWhen it `is desired to drive r'the shaft 2 in the Aopposite direction the ya'rfrn 31 (Fig. l) is swung to `its position -mwhich is its "frearward drive position, and the lraoks are thereby adjusted to the positions shown lin Fig. S, with resultant adjustment of the pins 1'8 and 18a in rrespect to the. contact surfaces 14 and 14, as shown in lFig. 7. The' driveof the shaft@ is now reversed from that shown in Fig. 5, that -isto say, when the disks 13 and afare rotated in the direction offthe arrows ac they will be clutched to the anges 16 and 16 with consequent rotation lofthe shafts 2 and Vi10, VYVhien. however, :said ydisks are rotated in the direction ofithe arrows y they will rotate free from such clutching, consequently on the forward stroke of the actuating racks Vthe shaft 1) wiil be Yip'ositively-driven in reverse direction and onithe rearward stroke of said racks the shatt 2 will be positively driven in reverse direction, with resultant continuous rearward drive of the shaft 2.

When the swinging arm 31 (Fig. 1)=is setto `neutral position the swinging arm 16 ma beactuated without any rotation of the shaft i2 whatsoever. EV-*hen the airml is adjusted to its forward drive position actuation iof theswingng arm 6 `will result in continuous forward drive of the shaft 2. This itakes place no matter what degree of=actuation is imparted to the swinging arm 6, fthat Vi'sto say. it may be caused to swing fthrough its entire range orits swing may but a fraction ithereof and after rotation oflthe'shaift 2 has lbeen started actuation of fthe swinging arm 6 may cease, in which case rotationiof the shaft :2 willcontinue until its momentum is exhausted.

7When the arm `311 is adjusted to its"irear ward drive position actuation ofthelswinging arm 6 through any portion of its of travel will result in continuous rearward drive of the shaft 2.

At times it may be desired to control or stop the rotation of the shaft 2 after the same has been induced, and to eiect this each end of the reciprocating head 1 is equipped with a pair of blocks 33, each of which has a concave inner face 34 adapted to bear aginst hubs 35 secured to the intermediate shaft 11.

When the swinging handle 6 is swung to either of its extreme positions and' maintained thereat the surfaces 34 of one pair of blocks 33 will be brought into contact with the hubs 35 and will act thereagainst as a brake.

I claim:

1. The combinatiomin power transmission mechanism, of a shaft, a member secured thereto, a member rotatably mounted thereon, means interposed between said members for releasably clutching them together, a control member for said clutching means, said control member being rotatably mounted upon said shaft, a pinion secured to said rotatably mounted member, a pinion secured to said control member, racks intermeshing with said pinions, and means for simultaneously reciprocating said racks.

2. The combination, in power transmission mechanism, of a shaft, a member secured thereto, a member rotatably mounted there on, means interposed between said members for releasably clutching them together, a control member for said clutching means, said control member being rotatably mounted upon said shaft, a pinion secured to said rotatably mounted member, a pinion secured to said control member, racks intermeshing with said inions, means for simultaneously reciprocating said racks, and means for adjusting one of said racks in respect to the other.

3. The combination, in power transmission mechanism, of a shaft, a reciprocating element, releasable clutching means therebetween whereby reciprocation of said element causes said shaft to rotate, and means carried by said element which serves as a brake upon said shaft when said element is maintained in either of its extreme positions.

In testimony whereof l have signed my name to this specification.

CALVIN C. WILLIAMS. 

